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READ Free Dumps For Oracle- 1z0-020





Question ID 8207

Examine this execution plan?

Execution Plan 0 SELECT STATEMENT Optimizer = CHOOSE 1 0 COUNT (STOPKEY) 2 1 VIEW 3 2 SORT (ORDER BY STOPKEY) 4 3 TABLE ACCESS (FULL) OF 'CLASSES' Which statement generated this execution plan?

Option A

SELECT COUNT (*) FROM classes ORDER BY stopkey;

Option B

SELECT COUNT (*) FROM classes ORDER BY start_date;

Option C

SELECT * FROM (SELECT * FROM classes ORDER BY start_date DESC) WHERE ROWNUM < 11;

Option D

SELECT * FROM (SELECT * FROM classes WHERE ROWNUM< 11) ORDER BY start_date DESC;

Correct Answer A
Explanation


Question ID 8208

What is the maximum number of archival destinations allowed in Oracle 8i?

Option A

1

Option B

2

Option C

3

Option D

5

Option E

7

Correct Answer D
Explanation

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